App Inventor is a great tool to teach programming to high school students. Google Intern, Michelle Hutton, created the following 6 week curriculum. This curriculum is a project based curriculum that allows students to explore the world of computer science through the creation of smartphone apps.
A program that gives you the opportunity to play with physics - using your own hands. Apply a constructionists learning paradigm, learning by doing. Use simple drawing tools to design, construct and explore with.
ConSource is a free online library of constitutional history. We digitize and cross-reference source documents written by individuals who drafted, ratified, and influenced the creation of the U.S. Constitution and its Amendments. We also run programs and host events that make use of constitutional sources.